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26-07-2017
Mathematics

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musiclover10045 musiclover10045

26-07-2017

5 + 2*SQRT(x) = 15

subtract 5 from each side

2*SQRT(x) = 10

(2*SQRT(x))^2 =10^2

2^2 *x = 100

4x=100

x=400/4

x = 25

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